Every day, across Europe, the Circle of Life rotates in infinite complexity. Herbivores, which feed on vegetation, are preyed on by carnivores. Sometimes they simply die of old age or disease. Their carcasses are also consumed by scavengers, such as vultures, foxes and an array of insects, which are, in turn, part of intricate local food webs.
Eventually, aided by the action of myriad microorganisms and fungi, the decomposition of once living flesh means nutrients are returned to the soil, which then help new plants to grow.